Conversion of Energy, Wind and Hydropower Technologies

Identify the energy conversion you see in the image.

• Mechanical energy being converted into electric energy

• Electromagnetic energy converted into nuclear energy

• Thermal energy converted into sound energy.

• Nuclear energy converted into thermal energy.

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Another name for Electromagnetic energy is _______________.

• Thermal energy

• Nuclear energy

• Radiant energy

• Sound energy

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The energy conversion you're witnessing in the image is

• nuclear energy converted to mechanical energy

• thermal energy converted to nuclear energy

• chemical energy converted to electromagnetic energy

• mechanical energy converted to electric energy

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In this image electromagnetic (radiant) energy is being converted into _______________________.

• nuclear energy.

• thermal energy.

• light energy.

• chemical energy.

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Natural resources such as wind and water are considered ____________ ___________ because they are always available.

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How does wind power electricity?

• The wind pushes free electrons through the air then into wires.

• Wind pushes the connected blades to push spinning parts then activate a generator to make electricity.

• Water flows through the blades of the turbine and causes generator to make electricity.

• Puppies play with the blades and stimulate the generator in body of the turbine.

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Why is wind considered a source of renewable energy?

• Wind is lighter than water or land (earth).

• Water is nonrenewable energy.

• Sound is not always produced to push turbine blades.

• Wind is always blowing somewhere across the surface of the earth.

Why don't we use wind power more widely (everywhere and more often)?

• The wind can become too powerful and damage the turbine.

• The wind never stops moving the turbine, making it tired.

• Wind doesn't always blow in the same spots.

• Technology for storing large amounts of energy are currently very expensive.

• Wind turbines can be placed far from cities that require the most energy because the wind blows better in open spaces.

Why is hydropower also called "hydroelectric power"?

• Moving water can be poured into an electrical outlet.

• It harnesses energy from flowing water and converts it into electricity.

• Both of the above.

• None of the above.

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What machines are used to convert flowing water from a higher to lower elevation into electricity? (Check all that apply.)

• Plastic sticks

• Generators

• Turbines

• Car engine